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Effect of maternal height and weight on risk of preterm birth in singleton and twin births resulting from in vitro fertilization: a retrospective cohort study using the Society for Assisted Reproductive Technology Clinic Outcome Reporting System.
MedLine Citation:
PMID:  22154767     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: To examine the effect of height, weight, and body mass index (BMI) on the risk of preterm birth of singleton and twin pregnancies conceived by vitro fertilization (IVF). DESIGN: Retrospective cohort study using 2006-2008 data from the Society for Reproductive Technology Clinic Outcome Reporting System (SART CORS). SETTING: SART-associated assisted reproductive technology programs. PATIENT(S): 56,556 singleton and 23,804 twin live births resulting from fresh nondonor IVF cycles. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): Rates of very early preterm (VEPTB; <28 weeks), very preterm (VPTB; <32 weeks), and preterm birth (<37 weeks) births. RESULT(S): In both singleton and twin births, increased maternal height was associated with a decreased risk of preterm birth. Maternal overweight and obesity were associated with significantly increased risk of VEPTB and VPTB in twin pregnancies. For very obese women (BMI > 35 kg/m(2)) twins were associated with a threefold increased risk of VEPTB (6.1% vs. 2.0%) and a twofold increased risk of VPTB (11.5% vs. 5.9%) compared with women of normal weight (BMI 18.4-24.9 kg/m(2)). CONCLUSION(S): Obesity and short stature significantly increase the risk of VEPTB and VPTB in twins conceived by IVF.
Authors:
Richard P Dickey; Xu Xiong; Rebekah E Gee; Gabriella Pridjian
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-12-10
Journal Detail:
Title:  Fertility and sterility     Volume:  -     ISSN:  1556-5653     ISO Abbreviation:  -     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-12-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0372772     Medline TA:  Fertil Steril     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.
Affiliation:
Section of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Louisiana State University School of Medicine, New Orleans, and Fertility Institute of New Orleans, Mandeville, Louisiana.
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